Love is in the air on Valentine's Day. Meg dates a guy from the internet, Stewie uses his time machine and falls for a girl in the '60s and Peter and Lois decide to stay in bed all day. Meanwhile, Brian's ex-girlfriends pay him a visit and Quagmire gets in Touch with his feminine side on the "Valentine's Day in Quahog" episode of Family Guy airing tonight, Feb. 10 (9:00-10:00 PM ET/PT) on FOX. (FG-1011) (TV-14 D, L, S, V)